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A preconditioning process for extended passivation of alloyed lead anodes in zinc electrowinning
dc.creator | Rajković, Miloš | |
dc.creator | Vladisavljević, Goran | |
dc.creator | Ristić, Nikola | |
dc.creator | Jaksić, MM | |
dc.date.accessioned | 2020-12-17T17:38:20Z | |
dc.date.available | 2020-12-17T17:38:20Z | |
dc.date.issued | 1998 | |
dc.identifier.issn | 0256-1654 | |
dc.identifier.uri | http://aspace.agrif.bg.ac.rs/handle/123456789/141 | |
dc.description.abstract | On the basis of an old Cominco, Trail. B.C., idea of preconditioning silver (0.8 wt%) alloyed lead electrodes for a proper passivation, optimal, chemically balanced and more economical process has been developed for use in Zn electrowinning. A relatively short time anodic polarization of Fb(As) electrodes in sulphuric acid containing fluoride ions, (as a stimulating agent for protective and compact layer formation of beta-PbO2), is found to give a compact, homogeneous, long lasting passivation layer of beta-PbO2. The presence of a small amount of F--ions in the passive layer of beta-PbO2 enables the passive oxide deposit to behave as long lasting, Monitoring of Pb-ions emission testifies that the preconditioned electrode will have more than ten years of life zinc electrowinning. An additional contribution is the exchanged chemical balance of manganese species in solution: the detrimental MnO2 production is dramatically reduced. The most important achievement of the process represents, winning of pure zinc. | en |
dc.publisher | Central Electrochem Res Inst, Karaikkudi | |
dc.rights | restrictedAccess | |
dc.source | Bulletin of Electrochemistry | |
dc.subject | silver alloyed lead electrode | en |
dc.subject | passivation | en |
dc.subject | preconditioning process | en |
dc.subject | zinc electrowinning | en |
dc.subject | beta-PbO2 protective coating | en |
dc.title | A preconditioning process for extended passivation of alloyed lead anodes in zinc electrowinning | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 114 | |
dc.citation.issue | 3 | |
dc.citation.other | 14(3): 107-114 | |
dc.citation.rank | M23 | |
dc.citation.spage | 107 | |
dc.citation.volume | 14 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_agrospace_141 | |
dc.identifier.scopus | 2-s2.0-0542372755 | |
dc.identifier.wos | 000075865500003 | |
dc.type.version | publishedVersion |
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